SEARCH Articles Figures Tables Exciton states beyond the Heitler London approximation Extensions to the simple Heitler-London treatment Heitler London functions Heitler-London Bondonic Condensation Heitler-London HL wave function Heitler-London Valence Bond theory Heitler-London approach Heitler-London approach generalization Heitler-London approximation Heitler-London calculation Heitler-London configuration Heitler-London dispersion forces Heitler-London energy Heitler-London equation Heitler-London exchange Heitler-London exchange term Heitler-London integral Heitler-London interaction energy Heitler-London method Heitler-London model Heitler-London molecular orbital theory Heitler-London paper Heitler-London problem Heitler-London procedure Heitler-London results Heitler-London simulation Heitler-London structures Heitler-London theory Heitler-London treatment Heitler-London treatment of the hydrogen molecule Heitler-London valence bond solution Heitler-London wave function, high Heitler-London wave functions Heitler-London wavefunction Heitler-London, Pauling-Slater approach Heitler-London-Slater-Pauling Heitler-London-Slater-Pauling functions Hydrogen Heitler-London model Hydrogen molecule, Heitler-London Hydrogen molecule, Heitler-London treatment London London and Heitler Non-Heitler-London term Perturbation theory. A comparison with results obtained in the Heitler-London approximation Small corrections to Heitler-London approximation The Heitler-London Method The Heitler-London calculation The Treatment of Heitler and London Valence bond theory Heitler-London formulation